MC3000 single components

Short description

The system is delivered in single components and mounted in the tubing of a vehicle. As far as needed the single components are combined. For controlling there is a PLC available or the components can be integrated into an existing CAN Bus system of the vehicle, assisted by MicroCAFS technology support.

  • single components integrated into a vehicle system as far as needed as an individual solution
  • compressor is driven by a tooth belt via pto shaft or by hydraulic motor or optionally by second pto
  • precise positive pressure proportioning foam pump by exzentric worm pump, volumetric, no calibration needed
  • no flushing of foam pumps necessary after use
  • simple one button operation, every function can be switched by only pushing one button

In the standard configuration the foam dosing is done by two excentric worm pumps. Up to 4 pumps can be arranged optionally. The flow measuring is done by hightec magnetic inductive measurement. Independent of the type of the foam agent (viscosity) the accurate dosing will be made by the excentric worm pumps. Also the reliable dosing all over the working range is guaranteed under different working pressures.

CAFS is produced in the patented MicroCAFS mixing valve without remarkable pressure loss and without limitations of the water flow as well. Compressed air will be injected in the water/foam flow by proportional pressure regulation valve into the mixing valve. According to the quick reaction of the measurement and regulation, the unit can also handle quickly changing operating conditions (e.g. during chopping).

The unit allows CAFS flow rates up to minimum 800 l water per minute (about 1.200 l/min CAFS flow). This results in expanded CAFS flow of about 3.200 l/min. Therefore it also fits for using a monitor with about 1.200 l/min or several nozzle pipes at the same time. The unit provides high capacity for efficient and safe firefighting, also for indoor firefighting  and industrial firefighting.

Basic rules (tactical and technical) and sufficient self protection for attack teams have to be considered by fire fighting with CAFS as well. The attack teams must be trained regularly and constantly to enhance effectivity and safety for firefighting with CAFS.

CAFS unit performance

water + foam (WF):

PPPS 16   ( PPPS 24)
excentric worm pump
18 l/min (2 pumps) up to max.36 l/min (4 pumps)

water + foam + air (CAFS):

CAFS 2400/800
compressor 2400 l/min at 10 bar
water flow up to minimum 800 l/min
displacement wet 30% to 40%
displacement CAFS dry 70% to 90%

working pressure:

1 – 10 bar

power consumption compressor:

22 kW

elektr. power supply 24 V:

approx. 50 Ampere (2 pumps)
(add. approx. 20 Ampere per add. pump)

MicroCAFS positive pressure proportioner PPPS 16


electronic controlled proportioner

foam dosing rate:

0,1 – 6% (step: 0,1%),
maximum flow rate 18 l/min


2 excentric worm pumps
flow rate 0,1 – 18 l/min at suction height = 0m
maximum working pressure 12 bar


pump case                             stainless steel 1.4571

rotating parts                         stainless steel 1.4571

rotor                                      stainless steel 1.4571

stator                                     EPDM (F65A)

 pump medium:

fits for all foam agent for fire fighting

volumic mass                        1 kg/dm³

viscosity                              1 mm²/s

working temperature              +5 - +45°C

low temperatures with additional heating


elektrical motor 24 V DC, electronically controlled


Integrated protection against dry running with

emergency shutdown (drive)


PPPS 24 with 3 foam pumps (max.27 l/min)
PPPS 32 with 4 foam pumps (max.36 l/min)


nominal air delivery:

2.400 l/min. at 10 bar, max. 3.000 l/min.


with tooth belt, direct drive, hydraulic motor, not switchable,

electropneumatical idle running controlling


air cooler for oil and air


safety valve (air), over heat protection (oil)

automatic heating (oil)

patented MicroCAFS mixing valve MK51

  • patented main score unit of the MicroCAFS unit with switch for the two different foam qualities „wet“ and „dry“.
  • without turbulencers in the flow section
  • no pressure loss




standard  (black)

measuring/control items:


patented MicroCAFS air control MC CMS (CAFS Management System)

  • electronically controlled air regulation valve
  • optional connection to CAN bus of vehicle
  • PLC control
  • optional: operation panel with display
  • display shows dosing ratio, water flow, warnings




by push buttons


off / foam proportioning / CAFS „wet“ / CAFS „dry“
+/- button for changing dosing ratio (step 0,1%)

  • optional: preparation for integration of operation panel in the vehicle
  • simple one button operation. Every function only by pushing one button. no unneeded displays.
  • measurements/weights are approximate.
  • detail clearing after order required.

subjects to change without any notice

composite vessels

MicroCAFS introducing as one of the market pioneers the first CAFS units wth composite pressure vesels. Vessels are with PED 2014/68/EU approval and provide less weight and lower cost with no corrosion.